Climate averages 1991–2020
Khorramabad weather
in May.
A warm, fairly dry month: the 5th warmest and the 5th driest of the year. Meets the pleasant-weather rule
Long-term climate patterns, not a forecast for a particular trip.
May is a warm month in Khorramabad: daytime highs average 27.1°C and nights cool to about 13.4°C. By daytime temperature it is the 5th warmest of the 12 months.
Expect about 22 mm of rain on roughly 5 days, which makes May a fairly dry month (the 5th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 13 h 52 min on an average May day.
The nearest other city in this atlas is Borūjerd (58 km away). In May its highs average 24.3°C, 2.8°C cooler than Khorramabad, with 37 mm of rain.
Among the 128 cities listed in Iran, Khorramabad ranks joint 57th of 128 for the warmest May highs and joint 72nd of 128 for the driest May (rainfall, lowest first). The mean May high of those 128 cities is 27.8°C; Khorramabad is 0.8°C cooler than that mean.
From May to June, average highs rise by 7.3°C to 34.4°C, and monthly rainfall falls from 22 mm to under 1 mm.
The annual picture
May in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Khorramabad climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 7.1°C-2.6°C | -2.6°C | 96 | 10.5 | 10.210 h |
| February | 9.1°C-1.1°C | -1.1°C | 90 | 10.8 | 11.011 h |
| March | 14.5°C3.2°C | 3.2°C | 107 | 11.4 | 12.012 h |
| April | 20.6°C8.4°C | 8.4°C | 79 | 9.8 | 13.013 h |
| May, selected | 27.1°C13.4°C | 13.4°C | 22 | 4.5 | 13.914 h |
| June | 34.4°C18.3°C | 18.3°C | 0.9 | 0.3 | 14.314 h |
| July | 38.2°C21.9°C | 21.9°C | 0.3 | 0.1 | 14.114 h |
| August | 38.0°C21.5°C | 21.5°C | 0.1 | 0.0 | 13.413 h |
| September | 33.4°C17.3°C | 17.3°C | 0.7 | 0.2 | 12.412 h |
| October | 26.0°C12.2°C | 12.2°C | 24 | 3.5 | 11.411 h |
| November | 16.5°C5.5°C | 5.5°C | 66 | 8.0 | 10.510 h |
| December | 10.6°C0.5°C | 0.5°C | 88 | 8.8 | 10.010 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
May in nearby cities
- Borūjerd in MayIran · 58 kmHigh 24.3°C · Low 12.9°C · 37 mm rain
- Dorūd in MayIran · 65 kmHigh 25.2°C · Low 13.9°C · 24 mm rain
- Kūhdasht in MayIran · 69 kmHigh 27.0°C · Low 12.0°C · 22 mm rain
- Nahāvand in MayIran · 78 kmHigh 23.2°C · Low 11.7°C · 31 mm rain
- Malāyer in MayIran · 100 kmHigh 23.2°C · Low 10.5°C · 26 mm rain
- Andīmeshk in MayIran · 114 kmHigh 37.1°C · Low 21.0°C · 9.8 mm rain
- Dezful in MayIran · 123 kmHigh 37.7°C · Low 21.2°C · 9.4 mm rain
- Alīgūdarz in MayIran · 124 kmHigh 21.6°C · Low 7.4°C · 16 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Khorramabad) is explained once on the Khorramabad year overview and on the Sources, method and limits page.